FBD Filter Bag: Features of FBD Filter Bag

FBD is the abbreviation of Fluid Bed Dryer Bag. FBD FilterBag is generally used in pharmaceutical food and chemical industry. FBD Filter Bag is precisely made multi tube filter bags for maximum filtration area in a confined space. Now days FBD Filter Bag is readily available made of different type of superior quality fabrics as per the need of the material involved in drying. FBD Filter Bag is produced using the premium quality raw materials. FBD Filter Bag, which is used in pharmaceutical industry is very performance oriented. Because these are manufactured of using the latest sophisticated technology. Fabrication design of for FBD Filter Bag is readily available for all makes and model of fluid beg dryer systems. Now days a lot of standard alternatives with most existing cap and skirt designs FBD Filter Bag are available in the market. FBD Filter Bag guaranties for easy set up and perfect fit with fluid bed dryers on the basis of its high quality.

FBD Filter Bag is also customized for specific need and dryer equipment.  All available designs and measurements can be customized to any requirement.

FBD Filter Bag has following parts-

1-Tubes - Tubes which welded (without stitching holes) are useful to diminish product loss. Its standard diameter is 160 mm and manufactured from conductive fabrics.

2-Flat Cap - Flat cap of FBD Filter Bag contains a conductive ribbon to ensure full conductivity. It is reliable and sandwich construction (known as fabric-felt-fabric) to avoid dead spaces.

3 - Cone Cap- This part of FBD Filter Bag is also a firm sandwich construction, which is known as fabric-felt-fabric is utilized to avoid dead spaces.

4- Skirt - Skirt part of FBD Filter Bag is are two typed construction. One of these is with 6 mm cord and other is made with a zip.

Features of FBD Filter Bag -

 Feature of FBD Filter Bags are as follows -

                A- It is made up of welded tubes to decrease precious product loss.

                B-It has unique electrical resistive certificate.

                C-It has excellent resistant to wear and abrasion.

                D-FBD Filter Bag is made of extremely durable medial.

                E-FBD Filter Bag is a complete range of pharma-grade fabrics inclusive conductive fabrics.

                F- FBD Filter Bag handles exceptional resistance to premature blinding.

                G-High flow rates of FBD Filter Bag are Coupled with proficient particle retention.

                H- FBD Filter Bag is ideal to fit for all dryers.

                I-Its surface is smooth.

                J-It is manufactured with CAD controlled laser system .

                K-FBD bad has pharma label, so its usage is completely safe in pharmaceutical industries.

                                          

Benefits of FBD Filter Bag- benefits of FBD Filter Bag is as follows-            

A- FBD Filter Bag guarantees higher efficiency. It decreases precious product loss.           

B-FBD Filter Bag boosts safety. It offers proved conductivity of assembled bag.

C-No product contamination from loose fibers.

D-FBD Filter Bag delivers optimal service life of fluid bed dryer systems.

E-FBD Filter Bag reduces risk of holes forming at the skirt area.

F-FBD Filter Bag provides highest dryness.

G-FBD Filter Bag present improved production rates.

H-FBD Filter Bag offers low down time of fluid bed dryer.

I-installment of FBD Filter Bag is easy, not complex.

J-FBD Filter Bag provides easy cleaning and easily solid cleaning facility.

K-FBD Filter Bag can apply in broad versions of usage. For example it can be used in medicine industry, chemical and petroleum industry.

Dust Filter Bag - Types of dust filter bag

Now a day’s dust filter bag is required mainly by all the manufacturing plants. Dust filter bag is employed to purify pollutants from the factory atmosphere. Dust filter bag is also available in fabric with special surface coating and finishes.

                1- Plain – It is natural finish. It is a typical purpose matter

                2-Singed-It is finished by exposing media to open flame to burn off any loose fibers. Dust            filer bag improves dust layer formation.

3-Glazed- It is accomplished by running media over the hot roller which melts fibers and results                in a smooth eggshell finish. Dust filter bag also improves the dust layer release.

4- Acrylic Coated- Air permeable acrylic surface coated polyester for moist situations.

5- Flame retardant- Dust filter bag is not flame -proof. But it guarantees a self extinguishing feature that is applied when sparks are involved during grinding process.

6-Teflon Membrane- Membrane of dust filer bag delivers a remarkably smooth high-efficiency finish.

7-Fiber glass- Dust Filter Bag made from fiber glass is high temperature and chemical resilient woven fabric.

                8-Dust filter bag is spark proof.

                9-Dust filter bag is anti adhesive.

                10-Dust filter bag is micro porous. It is also anti acid and other special finishes.

Types of dust filter bag-

A- Fiber Glass Dust Filter Bag

The dust filter bag is manufactured from glass fiber woven fabric that is special treat. This product has good heat resistance ability and utilized at 260 degree centigrade for a long time. It is ideal heat-resistant purification matter and has good stable size with good chemical repellent power, anti water, anti humidity and outstanding dust peeling features. The purification efficiency of this kind of dust filter bag is more than 99.5 percent. Now a day the glass fiber is generally used in cement, carbon black, electric power and metallurgical industries for eliminating dust in the condition of high temperature.

B-High Temperature Filer Bags-

If collector gas stream is from 150 degree centigrade to 260 degree centigrade. In this scenario high temperature dust filter bag typed dust filter bag is implemented. Dust filter bag of this type is made of effective media on high temperature, which is mostly suitable with any gas stream. Dust filer bag of this class can be used in temperature between 150 and 260 degree centigrade in combination with strong acid or alkaline mixture. Dust filter bag of this type is made of Nomex, Ryton, Teflon and fiber glass.

C- Ptfe Membrane Lamination Filter Bags-          

Dust filter bag of this category present PTFE membrane laminated filter bags to avoid the disadvantage of regular depth filtration media. In normal media they felt fabrics at ac a media for the built up of a dust layer. Which in turn capture even more and finer substances of dust? The dust filter bag is washed continuously to eliminate some of the dust layer and then start the process all over again.

PTFE membrane lamination on this dust filter bag works surface filtration. Where the filtration is performed by a micro porous PTFE membrane which is laminated to a process well-suited filter media. The support media delivers in this dust filter bag the physical strength to fabric whereas filtration is done by the membrane. This phenomenon is termed surface filtration. This form of dust filter bag offers benefits as follows-

                1- Consistently low pressure drop throughout the life of the filter bag.

                2-Lower outlet emissions.

                3-may take process upset more easily and thus minimizes downtime.

4-Generally the life is double than a common filter bag if all other issues in the bag house remain same.

5-Lower operation and maintenance cost.

6-Great product recovery.

D-Pulse Jet Filer Bags-

This kind of dust filter bag is manufactured with sophisticated non woven felt. This is the  material which brings high overall performance and strength. This type of dust filer bag is applied for flying dust filtration in the industries.

E- Shaker / Reverse Dust Filer Bags-

Dust filer bag of this variety is produced from woven fabrics (for example spun and filament)     and non woven felt medias and employed in manufacturing plants for filtration purpose.

Filter Cages: Types of Filters cages in INDIA

Filters cages are a well-known and standard product for industry to remove particular substance from a flowing stream of fluid by passing the fluid through a filter device that traps these substances. Practically gases that have smoke soot and other particulates generated by process such as combustion of fossil fuels etc have been pass through woven or non woven filtration fabrics for cleaning such gasses prior to further handling of such gasses , or exhausting these kinds of gases to the atmosphere . Filters of these types are called as fabric filters or bag filters. A bunch of such filters are employed to provide dust collectors.

A tubular shaped fabric filters are inlay supported by a cage made of wires. These known as filter Cages. These Filter Cages are principally used to retain the appearance of bag filter. Filter Cages are ready in varied length and designs. Bag cages are on the market in the size from 12 to 14 feet (near about 3.5 to 4.25 meters) and a huge filtration system, I.e a bag house might have between 3000 and 5000 filter bags and concerned cages.  Filter Bag Cages are manufactured with using longitudinal steel wires with intermittent circumferential wires and top and bottom caps . These steel wires and other things are welded collectively using special machines and shipped as fabricated unit. It is inherent that the assembled filter cages will have a large volume but will be manufactured from a relatively small amount of materials with respect to the total volume filter bag cage. Typical materials with which filter cages are manufactured are as follows.

            1- MS Wire- Main features of ms wire are-

                        It made of 100% soft steel.

                        It is anti corrosive

It works outstanding performance.

It is highly durable.

It is resistant to high wear and tear.

It is offered in diverse sizes from 4mm t0 1mm I.e (8swg to 20 swg)

2- GI Wire – Galvanized Iron or (GI) wire is applied in many practical application which include vineyards, welded mesh for poultry forms, filter cages, gabions for soil protection, chain link , barbed wires and concertina wire for various mechanical engineering purposes.

3-304 Stainless steel-  It is a most versatile and normal 18/18 stainless steel. It is on the market in a wider range of products, types and finishes than other categories. It has good forming and welding characteristics. The balance austenitic structure of grade 304 enables it to severely deep          drawn without intermediate annealing.  Which has made this grade dominant in the fabrication of drawn stainless steel parts such sinks, hollow-ware and saucepans etc.

                       

4- 316 /316-L stainless steel- It is a type 316 standard molybdenum-bearing grade. It is second in significance to 304 among the austenitic stainless steel.   It provides 316 better overall corrosion resistant properties that grade 304. Particularly high resistive to pitting and crevice corrosion in chloride environments. Steel of this level has excellent welding and forming qualities.

Steel of this caliber is readily brake or roll formed into a wide variety of parts for functions in the industrial field architectural. Steel of this grade has outstanding welding qualities. Post-weld annealing is not required when welding thin sections.

Filter Cages are provided of following types-

            1-Bottom Loading groove top

            2-Straight Flange

            3-U-Cup with two piece design

            4- U- Cup

            5- U-Cup with built-in venturi

            6- Bottom loading high groove

Dust Collector Filter Bags- Advantages of Dust Collector Filter Bags

Dust Collector Filter Bags are most important element of a filtration system. These are product of glass fiber, acrylic, polyester, polypropylene, PTFE, P84 and nomex etc. These pleated dust collection bags are perfect and produce long-lasting excellent overall performance. These pleated dust collection bags are extensively employed for contamination control. Dust collector filter bags are also used in metallurgy, fertilizers and chemical industries.

These are essentially needed where the dust is produced throughout processing materials. For instance flour mill, pharmaceutical factories food processing etc, where the dust and other unsafe components can not be permitted to exhaust in open environment. Plant of these categories use dust collector filter bags to collect dust and some other harmful things. There are a wide variety of manufacturing techniques to manufacture acceptable dust collector filter bags to fulfill all the prerequisites of a dust collector depending up on the system of cleaning such as pulse & reverse jet and auto mechanism cleaning.

Advantages of Dust Collector Filter Bags-

                1- Its servicing cost is low.

                2-Practical efficiency of Dust Collector Filter Bags is incredibly high.

                3-It recovers heat very proficiently.

                4-It is effective and not affected by Gas-dust composition

Dust collector filter bags perform a vital role in these kinds of manufacturing plants who also generate dust and other hazardous chemical elements with their consumer items. These production plants are like cement, thermal power station, fertilizers, steel pants, aluminum, zinc, lead, asbestos and chemical plants etc. Dust collector filter bags are applied here to collect hazardous and dust crystals.

The Secondary objective of the dust collector bags is to check pollution for example air pollution and water pollution. In the cement industry the medium particle size of the cement dust ranges from 8 to 12 microns. When the dust collector sucks the air, air carries these crystals inside the dust collector. Dust collector transmits the air into the dust collector filter bags. Here dust collector filter bags are responsible to maintain sucked particles and permit the air to pass. In all the stages of cement production, dust collector filter bags are proven to be the best because of its high-efficiency and flow rate etc. Dust collector filter bags may perform proficiently during working in different temperatures, which may vary in accordance to the process of production dry or wet in production plants in the range of 150 degree Fahrenheit to 250 degree Fahrenheit.

Forms of Dust collector filter bags-

A- Acrylic homo-polymer needle punched filter felt-

               

MS Acrylic homopolymer needle punched filter felt are offered in woven or felt form. This product offers chemical resistance similar to poly propylene while allowing operation up to 250 degree Fahrenheit (equivalent to 121 c).

Its function is an excellent combination of filtration efficiency and dust layer release.

It provides good chemical resistance to acid and alkalis.

                It is applied in chemical processing.

                It is applied in mineral processing.

                It is applied in metal processing.

B-Antistatic Needle- Punched Filter Cloth-

MS Anti static needle punched filter cloth simply results in the explosion and conflagration after the consistency of common professional power and dust reaches certain degree. It is touching the static electricity light and sparks outside such as flour powder, coal powder and chemical elements. To hold fine particles of dust the filter medium of bag must be anti static.

C- Nomex Filter Felt-

The characteristic of MS nomex filer needle felt is high temperature (between 204 ~ 240              degree), anti acid, anti alkali, high filtration precision, low pressure drop and anti break.

                Its some other characteristics are anti abrasion, mostly applied  in pitch mix gas, blast furnace gas of steel                 factory , tail gas of while char ,kiln application and electrical cooker high temperature gas.

D- P84 Needle Punched Filer Felt-

MS p84 needle punched felt is a high heat resistant filter material good chemical repellent, good air permeability and  high filtration efficiency. It is mostly used in coal boilers of thermal power stations.

E- Polyester (PET) Needle Punched Filter Felt-

MS Polyester needle punched filter felt deliver a cost-effective option for numerous industrial operations. They are highly useful and efficient in dust collection.

F- Water and Oil Resistant Filter Cloth-

After oil and water treatment numerous filter fabrics can form a layer of substances blockage around the fiber surface. This style of dust collector filter bags filters various contaminants from the water and oil.

G- Filter Bags with PTFE Membrane Laminating-

These dust collector filer bags are used in all the dust collector applications. The expanded          PTFE Membrane permits more air to pass through the filter media while trapping particles on the surface. Using this type of dust collector filter bags engineers can reduce capital and              operational costs. Use of this style of dust collector filer bags also offer a degree of protection from the unknown and indirect-able  changes that sometimes occur during bag house operations.

Other types dust collector filter bags are ---

                1- Glass fiber Needle Punched Filter Felt

                2 -Poly-P-Phenylene Sulfide (PPS) Needle- Punched Filter Felt

                3-PTFE (Polytetrafluoroethylene) Needle Punched Filter Felt